package servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.Method;

public abstract class BaseServlet extends HttpServlet{

    private void doAction(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException{
        req.setCharacterEncoding("UTF-8");
        String action = req.getParameter("action");

//        if(loginReq.equals(action)){
//            login(req,resp);
//        } else if(registerReq.equals(action)){
//            register(req,resp);
//        }

        //使用反射
        try {
            System.out.println(action);
            Method method = this.getClass().getDeclaredMethod(action, HttpServletRequest.class, HttpServletResponse.class);
            method.setAccessible(true);
            method.invoke(this,req,resp);

        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }


    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doAction(req,resp);
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doAction(req,resp);
    }
}
